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CPU Comparison: FPS, Specs & Value

Core i5-8400 vs Core i7-4790K

The Core i5-8400 is slightly faster than the Core i7-4790K on average across 100+ games and it's also a much better value for money, as it's $105.15 cheaper!

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CPU

$144.80View CPUAll CPUs

Up to 1% faster on average across 100+ games
Is 3 years and 6 months newer
Up to 92% cheaper – $144.80 vs $249.95
Up to 93% better value for money

CPU

$249.95View CPUAll CPUs

Up to 92% more expensive – $249.95 vs $144.80

FPS Comparison Across Popular Games

Predicted average FPS at 1080p, 1440p, and 4K, based on real game benchmarks.

Resolution

Quality

Paired GPU

View Compare All GPUs

Select GPU

Fortnite2017

Core i5-8400

327FPS

Core i7-4790K

327FPS

Escape From Tarkov2017

Core i5-8400

220FPS

Core i7-4790K

220FPS

League of Legends2009

Core i5-8400

216FPS

Core i7-4790K

215FPS

Grand Theft Auto V2013

Core i5-8400

204FPS

Core i7-4790K

204FPS

Valorant2020

Core i5-8400

590FPS

Core i7-4790K

590FPS

Minecraft2011

Core i5-8400

619FPS

Core i7-4790K

618FPS

Overwatch 22023

520FPS

520FPS

532FPS

530FPS

Specs & Benchmark Comparison

Side-by-side specs, synthetic benchmarks, and key hardware differences.

Scorehelp

Core i5-8400

29%

Core i7-4790K

28%

Core i5-8400 ranks 1 points higher.

Coreshelp

Core i5-8400

Core i7-4790K

Core i5-8400 has 2 more cores.

Threadshelp

Core i5-8400

Core i7-4790K

Core i7-4790K has 2 more threads.

L3 Cachehelp

Core i5-8400

9 MB

Core i7-4790K

8 MB

Core i5-8400 has 1 MB more L3 cache.

Base Frequencyhelp

Core i5-8400

2.8 GHz

Core i7-4790K

4 GHz

Core i7-4790K has a 43% higher base clock.

Turbo Frequencyhelp

Core i5-8400

4 GHz

Core i7-4790K

4.4 GHz

Core i7-4790K boosts 10% higher.

TDPhelp

Core i5-8400

65W

Core i7-4790K

88W

Core i5-8400 draws 23W less power.

Pricehelp

Core i5-8400

$144.80

Core i7-4790K

$249.95

Core i5-8400 is $105.15 cheaper.

Core i5-8400Core i7-4790K

LGA1151

Sockethelp

LGA1150

Coffee Lake

Codenamehelp

Haswell

Desktop

Segmenthelp

Desktop

UHD Graphics 630

Integrated GPUhelp

Intel HD 4600

2666 MHz (DDR4)

RAMhelp

1600 MHz (DDR3)

Not Overclockable

Overclock Supporthelp

Overclockable

Frequently Asked Questions

compare_arrowsWhich is better, Core i5-8400 or Core i7-4790K?expand_more

Neither, they're within 1% of each other across 100+ games. Pick based on price, availability, or platform compatibility.

aspect_ratioWhich is better for 1440p and 4K gaming, Core i5-8400 or Core i7-4790K?expand_more

They trade blows depending on the game. Toggle the resolution selector above to compare per-game FPS at 1440p and 4K.

differenceWhat is the difference between Core i5-8400 and Core i7-4790K?expand_more

Performance: Core i5-8400 scores 29/100, Core i7-4790K scores 28/100. They also differ in core count, clock speeds, L3 cache, and power draw. Full breakdown in the specs section above.

compressWill the Core i5-8400 or Core i7-4790K bottleneck my PC?expand_more

Depends on the rest of your build, especially your GPU. Swap the paired GPU in the FPS section above to see if it limits performance, or use our bottleneck calculator for a full analysis.

upgradeIs it worth upgrading to the Core i5-8400 or Core i7-4790K?expand_more

Both are solid choices. Compare your current CPU against each one to see the exact FPS gain.